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/*
* Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4429365
* @summary Checks that ImageReadParam.setSourceProgressivePasses handles
* overflow correctly
*/
import javax.imageio.ImageReadParam;
public class ImageReadParamPasses {
private static final int maxint = Integer.MAX_VALUE;
private static void expect(int i, int j) {
if (i != j) {
throw new RuntimeException("Expected " + i + ", got " + j);
}
}
private static void checkForIAE(int minPass, int numPasses) {
ImageReadParam param = new ImageReadParam();
boolean gotIAE = false;
try {
param.setSourceProgressivePasses(minPass, numPasses);
} catch (IllegalArgumentException iae) {
gotIAE = true;
}
if (!gotIAE) {
throw new RuntimeException("Failed to get IAE for wraparound!");
}
}
private static void test(int minPass, int numPasses) {
ImageReadParam param = new ImageReadParam();
param.setSourceProgressivePasses(minPass, numPasses);
expect(param.getSourceMinProgressivePass(), minPass);
expect(param.getSourceNumProgressivePasses(), numPasses);
int maxPass = numPasses == maxint ? maxint : minPass + numPasses - 1;
expect(param.getSourceMaxProgressivePass(), maxPass);
}
public static void main(String[] args) {
// Typical case
test(17, 30);
// Read all passes
test(0, maxint);
// Start at pass 17, continue indefinitely
test(17, maxint);
// Start at pass maxint - 10, continue indefinitely
test(maxint - 10, maxint);
// Start at pass maxint - 10, go up to maxint - 1
test(maxint - 10, 10);
// Start at pass maxint - 10, go up to maxint
test(maxint - 10, 11);
// Start at maxint, continue indefinitely :-)
test(maxint, maxint);
// Start at maxint, go up to maxint
test(maxint, 1);
// Check that an IllegalArgumentException is thrown if
// wraparound occurs
checkForIAE(maxint, 2);
checkForIAE(maxint - 5, 10);
checkForIAE(10, maxint - 5);
checkForIAE(maxint - 1000, maxint - 1000);
checkForIAE(maxint - 1, maxint - 1);
}
}
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